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Q. No.Mn2+ compounds are more stable than Fe2+ compounds towards oxidation in their +3 state because :
| 1. | 3d5 configuration is more stable than 3d6 configuration. |
| 2. | 3d6 configuration is more stable than 3d5 configuration. |
| 3. | 3p5 configuration is less stable than 3p6 configuration. |
| 4. | 3p6 configuration is less stable than 3p5 configuration. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTransition metals show paramagnetic behaviour due to:
1. Paired electrons in the (n-1) d-orbitals
2. Unpaired electrons in the (n-1) d-orbitals
3. Due to \(d^{10},\) and \(d^{0}\) configuration
4. None of the above
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe correct statement(s) about interstitial compounds is/are:
| 1. | Transition elements are large in size and contain multiple interstitial sites. |
| 2. | Transition elements can trap atoms of other elements. |
| 3. | Interstitial compounds are chemically inert. |
| 4. | All of the above. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn element among the following that exhibits the maximum oxidation state is:
1. Cr
2. Mn
3. Fe
4. V
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch the properties given in Column I with uses given in Column II
| Column I-(Property) | Column II-(Metal) | ||
| A. | An element that can show +8 oxidation state | 1. | Mn |
| B. | 3d block element that can show up to +7 | 2. | Cr |
| C. | 3d block element with the highest melting point | 3. | Os |
| 4. | Fe | ||
| A | B | C | |
| 1. | 3 | 1 | 2 |
| 2. | 1 | 2 | 3 |
| 3. | 1 | 4 | 3 |
| 4. | 4 | 2 | 3 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich d-block elements are not considered transition elements, and why?
| 1. | Mn, Fe, and Ni because these have partially filled d-subshell. |
| 2. | Mn, Fe, and Ni because these have completely filled d-subshell. |
| 3. | Zn, Cd, and Hg because these have completely filled d-subshell. |
| 4. | Zn, Cd, and Hg because these have partially filled d-subshell. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe correct statement(s) regarding the oxidation state of transition elements is/are:
1. The oxidation state can vary from +1 to +7
2. Variable oxidation states are possible.
3. Both (1) and (2)
4. None of the above
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch Column I (Catalyst) with Column II (Process), and mark the appropriate option:
| Column I - (Catalyst) | Column II - (Process) | ||
| A. | Ni in the presence of hydrogen | 1. | Contact process |
| B. | Cu2Cl2 | 2. | Vegetable oil to ghee |
| C. | V2O5 | 3. | Sandmeyer reaction |
| D. | Finely divided iron | 4. | Haber's process |
| 5. | Decomposition of KClO3 |
Codes:
| A | B | C | D | |
| 1. | 3 | 4 | 2 | 5 |
| 2. | 2 | 3 | 1 | 4 |
| 3. | 5 | 4 | 3 | 2 |
| 4. | 4 | 5 | 3 | 2 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn element that does not show variable oxidation state is:
| 1. | Fe | 2. | Mn |
| 3. | Cu | 4. | Zn |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe correct statement(s) about transition elements is/are:
| 1. | The lowest oxide of a transition metal is basic, the highest is amphoteric/acidic. |
| 2. | A transition metal exhibits the highest oxidation state in oxides and fluorides. |
| 3. | The highest oxidation state is exhibited in the oxoanions of a metal. |
| 4. | All of the above. |
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